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NIOSH

2-METHYL-1-BUTANOL

ICSC: 0506

2-Methyl butanol-1
sec-Butylcarbinol
C5H12O / CH3CH2CH(CH3)CH2OH
Molecular mass: 88.2
ICSC # 0506 		CAS # 137-32-6
RTECS # EL5250000
UN # 1105
EC # 603-006-00-7
March 23, 1998 Validated

TYPES OF HAZARD/ EXPOSURE

ACUTE HAZARDS/ SYMPTOMS

PREVENTION

FIRST AID/
FIRE FIGHTING

FIRE Flammable.
NO open flames, NO sparks, and NO smoking.
Alcohol-resistant foam. Powder, carbon dioxide
EXPLOSION Above 50°C explosive vapour/air mixtures may be formed.
Above 50°C use a closed system, ventilation, and explosion-proof electrical equipment.
In case of fire: keep drums, etc., cool by spraying with water.
EXPOSURE


•INHALATION Cough. Dizziness. Drowsiness. Sore throat.
Ventilation, local exhaust, or breathing protection.
Fresh air, rest.
•SKIN Dry skin. Redness.
Protective gloves.
Remove contaminated clothes. Rinse skin with plenty of water or shower.
•EYES Redness. Pain.
Safety goggles.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
•INGESTION
Do not eat, drink, or smoke during work.
Rinse mouth. Do NOT induce vomiting. Rest. Refer for medical attention.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Collect leaking and spilled liquid in sealable metal or glass containers as far as possible. Absorb remaining liquid in sand or inert absorbent and remove to safe place.
Fireproof. Cool.

Note: C
Xn symbol
R: 10-20-37-66
S: 2-46
UN Hazard Class: 3
UN Packing Group: III
ICSC: 0506 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

2-METHYL-1-BUTANOL

ICSC: 0506

I

M

P

O

R

T

A

N

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D

A

T

A

PHYSICAL STATE; APPEARANCE:
COLOURLESS LIQUID , WITH CHARACTERISTIC ODOUR.

PHYSICAL DANGERS:


CHEMICAL DANGERS:


OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.


ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its vapour and by ingestion.

INHALATION RISK:
A harmful contamination of the air will be reached rather slowly on evaporation of this substance at 20°C.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance irritates the eyes, the skin and the respiratory tract. Swallowing the liquid may cause aspiration into the lungs with the risk of chemical pneumonitis. The substance may cause effects on the central nervous system.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
The liquid defats the skin.

PHYSICAL
PROPERTIES

Boiling point: 128°C
Melting point: < -70°C
Relative density (water = 1): 0.8
Solubility in water, g/100 ml at 25°C: 3.0 (moderate)
Vapour pressure, kPa at 25°C: 0.42
Relative vapour density (air = 1): 3
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.01
Flash point: 50°C o.c.
Auto-ignition temperature: 385°C
Explosive limits, vol% in air: 1.4-9.0
Octanol/water partition coefficient as log Pow: 1.3-1.4

ENVIRONMENTAL
DATA


N O T E S

Transport Emergency Card: TEC (R)-582

NFPA Code: H2; F2; R1
Card has been partially updated in August 2007: see Fire fighting, EU Classification.

ADDITIONAL INFORMATION



ICSC: 0506 2-METHYL-1-BUTANOL
(C) IPCS, CEC, 1994
IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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